分析了双圆弧拟合的原理，并对逼近误差进行分析，满足了加工拟合曲线的要求。
The principle of bi-arc segment approximating mode is analyzed. According to the analysis of the error, the manufacture requirement is satisfied with the analyzed arc interpolating curves.
该数控加工算法模块采用了双圆弧拟合算法，为加工出高质量的非球面镜片提供了理论基础。
The bi_arc fitting algorithm is used as the academic basis to produce the aspheric lens in high quality.
分析了双圆弧法拟合非圆曲线的特点。
The characteristics of double arc gain on non-circular curve are analyzed.
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